Description

This page is merely for the entertainment of the viewer. It shows graphs of
the physical network structure of some large-scale systems (powered by
graphviz). Contact me if you want your system graphed!

Big Red @ Indiana University

1024 nodes quad core PPC 970

160 32-port Myrinet 2G crossbars

3-stage folded Clos topology (full bisection bandwidth)

Odin @ Indiana University

128 nodes quad core Opteron 1GHz nodes

18 24-port InfiniBand SDR crossbars

full 2-stage folded Clos network (full bisection bandwidth)

CHemnitzer Linux Cluster (CHiC) @ Technical University of Chemnitz

575 nodes quad core Opteron nodes

112 24-port InfiniBand SDR crossbars

nearly a 3-stage folded Clos topology (full bisection bandwidth)

Deimos @ Technical University of Dresden

729 nodes quad core Opteron nodes

108 24-port InfiniBand SDR crossbars

"line-Clos" (line of 2-stage folded Clos switches) topology

Atlas @ Lawrence Livermore National Laboratory

1142 nodes quad core Opteron nodes

192 24-port InfiniBand SDR crossbars

full 3-stage folded Clos topology (full bisection bandwidth)

Ranger @ Texas Advanced Computing Center

4081 nodes

1365 24-port InfiniBand SDR crossbars

folded Clos topology (?) (full bisection bandwidth)

Thunderbird @ Sandia National Lab

4391 nodes

569 24-port InfiniBand SDR crossbars

folded Clos topology (half bisection bandwidth)

Tsubame @ Tokio Institute of Technology

1354 nodes

351 24-port InfiniBand crossbars

close-to folded Clos topology (half bisection bandwidth)

Jaguar XT-4 partition @ Oak Ridge National Lab

7947 nodes

SeaStar 2 21x16x24 3D-Torus network

I'm sure you would have guessed that the ball below is a 3d-torus ;)

Jaguar XT-5 partition @ Oak Ridge National Lab

18851 nodes

SeaStar 2 25x32x24 3D-Torus network

I'm sure you would have guessed that this giant donut is a 3d-torus ;)